Animal pictures of the week: 8 February 2013

Pianist Richard Clayderman plays the piano to Galapagos tortoise Dirk (aged 70) and his girlfriend Polly to encourage the endangered animals at London Zoo to mate, with a week to go until Valentine's Day. The slow-moving giants didn't appear particularly impressed, and only seemed to perk up when zookeepers brought them some carrots.Picture: Lewis Whyld/PA